iii.Group III: Question Numbers 81a to 85b (10 questions) will carry two
marks each. Each number in this series (81,82,83,84,85) will have two
sub-questions (a & b). The answer to part 'b' will be linked to the correct
answer to part 'a', as described below in Section (e)(vi).

a.Each question will have four choices for the answer. Only one choice is
correct.

b.Wrong answers carry 25% negative marks in Q1 to Q80 and Q81a, 82a, 83a,
84a and 85a. Marks for correct answers to Q81b, 82b, 83b, 84b and 85b will be
given only if the answer to the corresponding part 'a' is correct. However,
Q81b, 82b, 83b, 84b and 85b will not carry any negative marks.

iii.Assertion[a]/Reason[r]
type
with the choices stating if [a]/[r] are True/False and/or stating if [r] is
correct/incorrect reasoning of [a]

Example:
Q. Determine the correctness or otherwise of the following Assertion [a] and the
Reason [r]

Assertion: For a fully developed laminar flow in a circular pipe the average
velocity is one half of the maximum velocity.

Reason: The velocity for a fully developed laminar flow in a circular pipe
varies linearly in the radial direction.

A.Both [a] and [r] are true and [r] is the correct reason for [a]

B.Both [a] and [r] are true but [r] is not the correct reason for [a]

C.Both [a] and [r] are false

D.[a] is true but [r] is false

iv.Match
items:
Match all items in Column 1 with correct options from those given in Column 2
and choose the correct set of combinations from the choices A, B, C and D.

Example:
Q. Match the following and choose the correct combination

Capital

State

P.
Chennai

1.
Andhra Pradesh

Q.
Bangalore

2.
West Bengal

R.
Mumbai

3.
Rajasthan

S.
Kolkata

4.
Karnataka

5.
Tamil Nadu

6.
Maharashtra

(A)

(B)

(C)

(D)

P -
1

P -
5

P -
5

P -
4

Q -
6

Q -
4

Q -
4

Q -
5

R -
4

R -
3

R -
6

R -
6

S -
5

S -
2

S -
2

S -
2

v.Common data
based questions:
Multiple questions may be linked to a common problem data, passage and the like.
Two or three questions can be formed from the given common problem data. Each
question is independent and its solution obtainable from the above problem
data/passage directly. (Answer of the previous question is not required to solve
the next question). Each question under this group will carry two marks.

Example:Common data for Q. 78,79,80: The gas phase reaction, 2P + 4Q →
2R which is first order in P and first order in Q is to be carried out
isothermally in a plug flow reactor. The entering volumetric flow rate is 2.5 dm3/min
and the feed is equimolar in P and Q. The entering temperature and pressure are
727oC and 10 atm respectively. The specific reaction rate at this
temperature is 4 dm3/gmol min and the activation energy is 15,000
cal/gmol.

Q.78. What is the volumetric flow rate in dm3/min when the conversion of P is
25%?

(A) 1.88 (B) 5.40 (C) 7.10 (D) 10.80

Q.79. What is the rate of reaction in gmol/(dm3 min) when the
conversion of P is 40%

(A) 1.82 x 103 (B) 4.95 x 10-3 (C) 6.2 x 10-3 (D)
9.73 x 103

Q.80. What is the value of the specific reaction rate constant in dm3/gmol
min at 1227oC?

(A) 17.68 (B) 22.32 (C) 49.60 (D) 59.75

vi.Linked
answers question:
The question will consist of a problem statement followed by two sub-questions
(a) and (b) based on the problem statement. The solution to part (b) depends
upon the answer to part (a). Each part (a) as well as (b) in such linked answer
questions will carry two marks.

iii.Group III: Question Numbers 27a to 28b (4 questions) will carry two marks
each. Each number in this series (27, 28) will have two subquestions (a & b).
The solution to part 'b' will be linked to the correct answer to part 'a', as
described above in (e) (vi).

b.All questions have four choices with only one being correct.

c.Wrong answers carry 25% negative marks in Q1 to Q26 and Q27a, 28a. Marks
for correct answers to Q27b, 28b, will be given only if the answer to the
corresponding part 'a' is correct. However, Q27b, 28b will not carry any
negative marks.

d.The types of multiple choice questions are the same as in the Main papers
as described above in (e).